无法配置spring boot安全性-始终为403

@Configuration
@EnableWebSecurity
public class SecurityConfig extends WebSecurityConfigurerAdapter {

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http
            .authorizeRequests()
                .antMatchers("/public/**").permitAll() // 公开访问的路径
                .anyRequest().authenticated() // 其他路径需要认证
                .and()
            .formLogin() // 表单登录
                .loginPage("/login")
                .defaultSuccessUrl("/dashboard")
                .permitAll()
                .and()
            .logout()
                .logoutUrl("/logout")
                .permitAll();
    }
}

@Configuration
public class WebConfig implements WebMvcConfigurer {

    @Override
    public void addCorsMappings(CorsRegistry registry) {
        registry.addMapping("/**")
                .allowedOrigins("http://localhost:8080")
                .allowedMethods("*")
                .allowedHeaders("*")
                .allowCredentials(true);
    }
}